h a l f b a k e r yMake mine a double.
add, search, annotate, link, view, overview, recent, by name, random
news, help, about, links, report a problem
browse anonymously,
or get an account
and write.
register,
|
|
|
In recent winter months various EV owners discovered that if their battery got too cold the charging station software would refuse to charge it. While many EV vehicles have a battery heating function the driver must remember to activate it prior to cold weather charging and while there is still sufficient
voltage available.
If a scrap of nuclear waste were encapsulated in steel one would have a source of perpetual* heat, a hot marble. An antifreeze solution containing a hot marble and irrigated through channels throughout the battery pack via a small pump would keep the battery at a minimum temperature, suitable for charging even in the dead of winter. A heat sink might be used to mitigate excessive temps in really hot weather, perhaps there is already a system in use.
* the half-life of, say, Cs-137 is about 30 years
Please log in.
If you're not logged in,
you can see what this page
looks like, but you will
not be able to add anything.
Annotation:
|
| |
Or we could just spoof the sensors with an adapter that plugs in between the battery and the charger and gives a fake temperature reading? |
|
| |
Is there a legitimate safety reason chargers refuse to charge cold batteries or is it just a design fault in the chargers? |
|
| |
Just did a search for //why won't cold batteries charge?// [a1] and got this back in the top hit. |
|
| |
//cold temperatures cause fluids to flow more slowly. So, the electrolytes in batteries slow and thicken in the cold .. can prevent the lithium ions from properly inserting// etc. |
|
| |
So it's a physical properties issue? a spoofer won't fix, they physically can't charge if they're too cold, rather than the charger won't charge them, there's no sensors (causing it) to spoof. |
|
| |
I assume this is at public chargers where they want to charge at maximum rates, because I don't see why a home charger couldn't just start at low power until the battery warms up. |
|
| |
At commercial chargers, you could offer a separate parking space with infra red heat lamps (or a box of chickens) to warm the underside of the car. |
|
| |
Just not feelin it, sorry. [-] |
|
| |
Additionally, maintaining a constant battery temperature of, say 75F the vehicle range wouldn't diminish in chilly weather either the way it does now. Owners could realize warm-weather range year round. |
|
| |
Dealers could offer marble options, say a second hot marble to augment cabin heat with a traditional circulated liquid heater core for owners in harsh winter states, a third to keep the coffee in your travel mug hot indefinitely, others to offer to passengers with really cold hands. |
|
| |
Yes encapsulated nuclear waste coffee mugs have to be a thing. Can you deliver by midnight tonight? I'd like two please, in contrasting muted earth colours with bright blue details. |
|
| |
Aha! The marbilized battery-warmer spent-nuclear option! |
|
| |
Here in Ontario, we've made the impossible of two terrible choices to bury Bruce Nuclear and Darlington spent fuel rods in a northern First Nations community near the Great Lakes rather than the more populated Amish/Blue Mountains ski-country near the Great Lakes. |
|
| |
Your solution is an improvement: safer than existing 'spread the Love (Canal)' ordinance coated in nuclear waste lobbed at unsuspecting architecture, soldiers and citizenry. |
|
| |
<<mumble mumble warm 'battery chicken' joke incomplete, mumble mumble>> |
|
| |
As the thunderbirds taught us, having a nuclear-powered vehicle absolutely never goes wrong. |
|
| |
Oh wait, was it never or always? |
|
| |
Put in more cesium and make steam. Get rid of the batteries entirely. |
|
| |
I like this idea, and the discussion> true to the original concept of 'Half-Baked'! |
|
| |
This is my Christmas Eve gift; thank you, 'Bakers ! |
|
| |